Open Talk Series - Summer 2021

May 19

Title: Organization and Goals. Selection of topics.

(Initial organizational meeting)

June 2

Title: Extreme Particle Accelerators (Introductory)

Aim: Highlight and discuss several key topics and identify potential talks.

Speaker: Felix Aharonian (DIAS/MPIK)

Readings:

1. Constraints on the extremely high-energy cosmic ray accelerators from classical electrodynamics

2. Scenarios for Ultrafast Gamma-Ray Variability in AGN

3. Massive stars as major factories of Galactic cosmic rays

Presentation: Felix Aharonian’s Talk (pdf)

Discussions:

• Lead by Felix Aharonian

June 16

Title: Accelerating UHECRs in Radio Galaxies (Rescheduled)

Speaker: Tony Bell (University of Oxford)

Readings:

1. A nice review: Particle acceleration in astrophysical jets

2. Ultra-high energy cosmic rays from shocks in the lobes of powerful radio galaxies

3. Fornax A, Centaurus A and other radio galaxies as sources of ultra-high energy cosmic rays

June 16

Title: Particle Acceleration in Variable Jets

Speaker: Andrew Taylor (DESY)

Presentation: Andrew Taylor's Talk (pdf)

Readings:

1. Particle acceleration in radio galaxies with flickering jets: GeV electrons to ultrahigh energy cosmic rays

Discussions:

• Lead by Paolo Coppi & Felix Aharonian

June 30

Title: Relativistic Fermi acceleration

Speaker: Martin Lemoine (Institut d'Astrophysique de Paris, CNRS)

Readings:

TBD

Presentation: Martin Lemoine's Talk (pdf)

Discussions:

• Lead by Martin Lemoine & Brian Reville